VfEmage Women's Elegant Sexy Mesh Back Zipper Party Cocktail Club Bodycon Dress Zipper closure Our size is one size smaller than that of the US local brands like "Nordstrom". To prevent the size issue, please refer to our detail size information (bust/waist/hip size) below the product description before order. Thanks! Material: (black version)75%Cotton+20%Nylon+5%Spandex; (red version)95%Polyester+5%Spandex +25%Nylon+5%Spandex Garment Care:Machine Wash